Bio-based fiber carries the responsibility of chemical fiber

April 11, 2021

For the future of bio-based fibers, industry insiders have called for the fundamental role of the market to optimize the allocation of resources, so that enterprises truly become the mainstay of technological innovation and industrialization. At the same time, to strengthen cooperation in production, education and research, enterprises and universities must strengthen the alliance and establish a good platform for exchange and cooperation for the development of bio-based fibers.

Recently, the 8th China Bio-industry Conference was held at Tianjin Binhai International Convention and Exhibition Center. As a sub-forum of the conference, the “strategic emerging industries and bio-based fiber materials” summit forum attracted the attention of people from home and abroad. As mentioned in the forum, the country is now determined to develop the bio-industry, and the development of bio-based fibers and expansion applications can be described as right.

Recently, the 8th China Bio-industry Conference was held at Tianjin Binhai International Convention and Exhibition Center. As a sub-forum of the conference, the “strategic emerging industries and bio-based fiber materials” summit forum attracted the attention of people from home and abroad. As mentioned in the forum, the country is now determined to develop the bio-industry, and the development of bio-based fibers and expansion applications can be described as right.

Background: National strategic development needs

Since the 1990s, due to the shortage of petroleum resources and increased environmental pollution, the traditional chemical fiber production countries such as the United States, the European Union, and Japan have gradually withdrawn from conventional chemical fiber production, and on the other hand, redefine fiber materials. They continue to adjust the industrial structure and gradually shift the fiber industry to the development and production of high-performance chemical fibers and bio-based chemical fibers with higher profits and less impact on resources or the environment. Especially after the outbreak of the financial crisis, the developed countries have taken the development of the bio-industry as a national strategy to get out of the predicament, seize the high-tech commanding heights, and return to prosperity.

The 2011 World Bioplastics Conference (New York) presented examples of the rapid development of bio-PX/PTA and 100% bio-polyester technology, which attracted widespread attention in the industry. At present, the world's chemical giants such as DuPont Chemical, DOW Chemical, DSM, BASF, etc. have moved from the traditional chemical fiber and chemical industry in the last century to the research and industrialization of bio-based chemical fiber and raw materials, and as the highest priority. Development of business. Moreover, the bio-routed PX/PTA/PET industry chain will be commercialized between 2015 and 2016. According to the forecast of Freedonia, the industrialized scale production of 100% bio-based PET will become a reality in the next few years.

Looking back to the domestic market, at present, more than 90% of China's chemical fiber industry products are derived from petroleum. The cost of raw materials accounts for more than 80% of the production cost, and the import volume accounts for about 2/3 of the total demand for chemical fiber raw materials. The external dependence has actually been Exceeding the stable security line of the industry has brought many potential dangers to the healthy development of the entire industry chain. As a chemical fiber country with a production volume of 70% of the world, the development of China's chemical fiber industry will inevitably be led by other countries because of raw material problems.

According to Wang Wei, deputy director of the Consumer Products Industry Department of the Ministry of Industry and Information Technology, the development of bio-based chemical fibers and their raw materials is in line with the needs of the development situation. Duan Xiaoping, president of China Chemical Fiber Industry Association, also believes that the active development of bio-based chemical fiber and its raw material industry is not only an important way to achieve sustainable development of the chemical fiber industry, but also carries the heavy responsibility of chemical fiber. For the Chinese chemical fiber industry, the use of bio-based raw materials to produce chemical products to replace petrochemical products has become a necessity for current development.

For the development of the bio-based fiber industry, the state has also given strong support at the policy level.

The “Twelfth Five-Year National Strategic Emerging Industry Development Plan” and the “Chemical Fiber Industry Twelfth Five-Year Development Plan” all regard the development of bio-based chemical fiber and its raw materials as important special contents. Moreover, the National Development and Reform Commission, the Ministry of Finance, the Ministry of Industry and Information Technology, the Ministry of Science and Technology, and the Chinese Academy of Sciences are jointly promoting the “Special Implementation Plan for Bio-based Chemical Fibers and Raw Materials”.

"We must conscientiously implement the development plan of bio-based chemical fiber and its raw materials in accordance with the requirements of the state from the perspective of maintaining national security and cultivating strategic emerging industries." Duan Xiaoping emphasized.

Status: Enterprise R&D

Duan Xiaoping said that after years of development and accumulation, at present, China's bio-based fiber production covers almost all varieties, and it is a new fiber variety that does not lag behind foreign countries. In some respects, it is even ahead of the traditional Europe and the United States chemical fiber production power, is at the forefront of the world.

The development of bio-based fibers is inseparable from the enterprise.

Mei Feng, deputy general manager of Jiangsu Shenghong Group, introduced Shenghong's development of bio-based PDO and PTT differential fibers. He said that through close cooperation with Tsinghua University for many years, Shenghong has made breakthroughs in the industrialization of raw material PDO preparation of bio-based PTT fibers, and formed the characteristics of bio-based fibers, including PDO production, PTT synthesis, PTT spinning. , PTT fabric printing and dyeing technology and industrialization one-stop, became the first company in China to have a complete industrial chain for the production of this product. Shenghong has already put into production a PTT continuous polymerization production line, and the self-built PDO production line is expected to start in August this year.

As the first domestic marine fiber production enterprise, Qingdao Kangtong Marine Fiber Co., Ltd. has pioneered the production of marine fiber industry and has the world's largest production base of seaweed fiber. In the research and development of seaweed fiber, its research and development team has continuously developed various properties that algae fiber may have for 20 years. It has successfully developed fluorescent seaweed fiber, MWCNTs/calcium alginate composite fiber, and antibacterial function seaweed fiber. , agar fiber and carrageenan fiber, the annual output of seaweed fiber reaches 800 tons.

In the development of alginate fiber, at present, Guangdong Lily Medical Technology Co., Ltd.'s "alginate fiber and its biomedical dressing industrialization construction" project has been successful, the overall technology of the project research results have reached the international advanced level, product quality indicators To reach the international leading level, it has brought a good market reputation and status to Lily.

Pure chitosan fiber has outstanding natural antibacterial effect. The main raw material chitosan of chitosan fiber is the product of chitin deacetylation, which comes from the common shrimp shell. Hess Moore Biotechnology Co., Ltd. is a leader in this field. According to Hu Guangmin, the chairman of the company, Haysmore has its own science and technology museum and laboratory, and the R&D team is also extremely strong. At present, bio-based fibers such as Hays Moore pure chitosan fiber have broken through key technologies and have industrial production capacity base. The overall technical level has reached international leading, bringing good economic benefits to enterprises and society.

Shanghai Tongjieliang Biomaterials Co., Ltd. has been committed to the research and development and production of PLA fiber. Its “polylactic acid fiber industrial production technology research and application development” project has passed the acceptance of experts, and all the indicators have reached and exceeded the project proposal. Claim.

Application: Broadening the field has become a consensus

Bio-based fiber, natural and environmentally friendly, can be said to have excellent human affinity, and its application field is beyond people's imagination.

"Our Hess Moore's chitosan fiber can be used in the aerospace, medical, health, underwear, military, filtration and protection fields. In particular, we are proud that our chitosan fiber has become China. Aerospace professional products, the special functional cloth made of Hess Moore has been successfully applied to "Tiangong No. 1" and "Shenzhou No. 8" and flew into space." Hu Guangmin proudly said.

“The PLA fiber of our company has the advantages of green environmental protection, ventilating and ventilating, antibacterial and anti-mite. Take the feminine hygiene products made of our polylactic acid fiber as an example, it is natural, hygienic, and can be truly meaningful. Degradation, at the China International Fabrics and Accessories (Spring and Summer) Expo in March this year, we exhibited this feminine hygiene product, which was well received by the audience, and even the audience asked to buy it on the spot. Now, made of PLA fiber. The proportion of end products used in the United States and Europe continues to grow. It is believed that the future application space of this bio-based fiber will be wider." Ren Jie, chairman of Shanghai Tongjieliang Biomaterials Co., Ltd. told reporters.

Kangtong Marine Fiber Co., Ltd. is also actively exploring various application fields of seaweed fiber. Nowadays, special clothing such as firefighting suits, combat uniforms, and flame-retardant overalls made of seaweed fiber, as well as medical textiles and clothing, have been available. According to Xia Yanzhi, a special professor of Qingdao University, seaweed fiber is blended with other kinds of fibers. Special clothing can obtain flame-retardant fabrics with both durable and flame-retardant properties, which can be used to make fire-fighting suits and combat uniforms. The damage suffered by the user is minimized.

The future: no longer take the old road of regular development

According to the national plan for the bio-based fiber industry, by 2015, China's bio-based chemical fiber and its raw material production will increase from 3 million tons in 2012 (including traditional bio-based recycled fiber) to 5.1 million tons, an average annual increase of 17%. The total output value of bio-based chemical fiber and its raw materials will reach 105 billion yuan, with an added value of 44 billion yuan.

In the face of national requirements and planning, how to develop bio-based fiber in the future has become one of the most concerned issues in the industry.

Liu Xiucai, the chairman of Shanghai Kaisai Bio-Industry Co., Ltd., stated that the company's main position in the market, the company will choose its potential products at the forefront of the market, and the state should do a good job in intellectual property protection. “In the process of self-development and innovation, enterprises are faced with many unknown things. The research and development of bio-based fibers needs to be given sustained capital investment, which is not a small amount for enterprises. The things that come out are not protected, which is unfair to the enterprise. We hope that the state and the government can pay more attention to this aspect, and use the influence of public opinion to make people inside and outside the industry pay more attention to the role of bio-based fibers. Take advantage of this green fiber."

Heis Moore, which has independent intellectual property rights in pure chitosan fiber and industrialization projects, has already applied for more than 120 international and national patents. Hu Guangmin also emphasized the importance of intellectual property protection to reporters. He also said that it is necessary to protect the intellectual property rights of enterprises through patents, and minimize the risks that imitation and plagiarism may bring.

As for how bio-based fibers should be developed, many people in the industry are calling for the fundamental role of the market to optimize the allocation of resources so that enterprises can truly enjoy the benefits of market economy and become technological innovation and industrialization. main body. At the same time, to strengthen cooperation in production, education and research, enterprises and universities must strengthen the alliance and establish a good platform for exchange and cooperation for the development of bio-based fibers. In addition, it is hoped that the government's support will not only stay at the policy level, but also provide certain support in terms of institutional mechanisms, taxation, and research and development funds, and create a favorable environment conducive to the development of the bio-based fiber industry.

Li Zengjun, secretary general of the Biochemical Fiber and Raw Materials Committee of China Chemical Fiber Industry Association, said that in the future, the development of bio-based fiber industry will focus on breaking through a number of cutting-edge biotechnology with major support and leading role, and forming independent intellectual property rights. Seize the commanding heights of international competition and accelerate the realization of industrialization.

As for the road to development in the end, Duan Xiaoping proposed that the development of bio-based fibers should sum up the development experience of conventional fibers, avoid taking old roads and detours, and strive to open up new developments.

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